HomeCaliforniaLos Angeles CountyDiamond Bar
Diamond Bar, California: commercial real estate data.
Diamond Bar is a Census city of 53,355 people across 14.88 square miles of land, in Los Angeles County. Median household income is $108,281, 77.3 percent of occupied homes are owned, and the SBA record carries 71 7(a) approvals to borrowers here worth $39.9 m since FY2020.
Underlined figures are computed by MMCG Analytics, not published by the agency.
Diamond Bar
What Diamond Bar is
- Census place typecity
- Land area14.88 sq mi
- Water area0.01 sq mi
- Population per square mile of land3,586
- County holding the largest share of its areaLos Angeles County, 100.0 percent
US Census Bureau, cartographic boundary file, places, 2024 vintage. US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Diamond Bar
How many people live in Diamond Bar
- Population53,355
- Median age45.7
- Population under 1810,126
- Share under 1819.0 percent
- Population 65 and over11,217
- Share 65 and over21.0 percent
- Households18,005
- Family households14,323
- Share of households that are families79.6 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Diamond Bar
Income and work in Diamond Bar
- Median household income$108,281
- Per capita income$47,945
- Civilian labor force27,292
- Employed25,960
- Unemployed1,332 plus or minus 287
- Unemployment rate4.9 percent plus or minus 1.0
- Adults 25 and over39,776
- Adults 25 and over with a high school diploma or higher92.1 percent
- Adults 25 and over with a bachelor degree or higher52.8 percent
- Adults 25 and over with a graduate degree19.2 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Diamond Bar
Housing in Diamond Bar
- Housing units18,969
- Occupied units18,005
- Vacant units964 plus or minus 247
- Vacancy rate5.1 percent plus or minus 1.3
- Owner occupied13,917
- Renter occupied4,088
- Ownership rate77.3 percent
- Median owner-occupied home value$902,200
- Median gross rent, monthly$2,521
- Annual rent as a share of median income27.9 percent
- Single family units15,537
- Share single family81.9 percent
- Units in buildings of two or more3,064
- Share in buildings of two or more16.2 percent
- Mobile homes368 plus or minus 100
- Median year structure built1980
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Diamond Bar
How Diamond Bar gets to work
- Workers 16 and over who commute20,699
- Commuting under 15 minutes3,130
- Share commuting under 15 minutes15.1 percent
- Commuting 30 minutes or more11,712
- Share commuting 30 minutes or more56.6 percent
- Drove alone69.9 percent
- Carpooled9.3 percent
- Public transport1.0 percent plus or minus 0.4
- Walked0.4 percent plus or minus 0.2
- Worked from home18.4 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Diamond Bar
SBA loans in Diamond Bar (7(a))
- Approvals71
- Gross approval$39,875,500
- Average approval$561,627
- Median approval$284,000
- Ninetieth percentile approval$1,500,000
- Largest approval$5,000,000
- Jobs supported761
- Jobs per approval10.7
- Loans with a final outcome15
- Paid in full12
- Charged off3
- Median term120 months
- Share on real estate terms of 20 years or more16.9 percent
- Share to franchises12.7 percent
- Distinct lenders26
- Distinct industries by NAICS46
Counted by borrower city: approvals to borrowers whose address is in Diamond Bar, in any county, FY2020 to FY2026. Only 15 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
Diamond Bar
SBA loans in Diamond Bar (504)
- Approvals23
- Gross approval$24,380,000
- Average approval$1,060,000
- Median approval$775,000
- Largest approval$3,159,000
- Jobs supported265
- Loans with a final outcome5
- Charged off0
- Median term240 months
- Distinct CDCs7
Counted by borrower city: approvals to borrowers whose address is in Diamond Bar, in any county, FY2010 to FY2026. Only 5 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.
US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.
Diamond Bar
Flood risk in Diamond Bar
- NFIP communityCity of Diamond Bar
- NFIP community number060741
- Participating in the NFIPYes
- Community Rating System classNone
- Currently effective map date09/26/08
The City of Diamond Bar participates in the National Flood Insurance Program as community 060741 and carries no Community Rating System class, so no CRS premium discount applies to it.
Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26.
Los Angeles County, not Diamond Bar
Los Angeles County context, not Diamond Bar figures
- Establishments in Los Angeles County304,988
- Covered employment, Los Angeles County4,525,711
- Average annual pay, Los Angeles County$83,554
- Housing units permitted, Los Angeles County19,809
Every figure in this section is published for Los Angeles County as a whole and is not a measurement of Diamond Bar.
All Los Angeles County figures →
US Census Bureau, County Business Patterns, 2023. US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages. US Census Bureau, Building Permits Survey, 2024 annual.
Coverage
What this page does not hold.
Parcel detail, zoning and the flood zone at an address are not on this page; they resolve at the address in the platform. How this page was built →
Common questions
Diamond Bar questions, answered from the record.
How many people live in Diamond Bar, California?
53,355, in 18,005 households. Diamond Bar city covers 14.88 square miles of land, which is 3,586 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
What county is Diamond Bar in?
Los Angeles County, which holds 100.0 percent of the place by area. Source: US Census Bureau, cartographic boundary file, places, 2024 vintage.
What is the median household income in Diamond Bar?
$108,281. The median owner-occupied home is valued at $902,200. Median gross rent is $2,521 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
How much SBA lending goes to Diamond Bar businesses?
71 7(a) approvals totaling $39.9 m since FY2020, across 26 lenders, median approval $284,000, plus 23 504 approvals worth $24.4 m since FY2010. These count approvals to borrowers whose address is in Diamond Bar, not projects sited inside the place boundary, and they are approvals recorded in the release rather than loans disbursed.
Do SBA loans to Diamond Bar borrowers get paid back?
No rate is published for Diamond Bar. Only 15 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published. The counts are shown instead.
Is Diamond Bar in the National Flood Insurance Program?
Yes. Diamond Bar appears in the FEMA Community Status Book as Diamond Bar, city of, community 060741, with no Community Rating System class, so no CRS discount applies. Whether a specific parcel sits in a mapped special flood hazard area is an address level question the platform answers.
Are the county figures on this page Diamond Bar figures?
No, and they are labeled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for Los Angeles County as a whole and there is no place level equivalent. They appear in one clearly marked section as context and are never presented as measurements of Diamond Bar.
Is zoning published for Diamond Bar?
No. Nothing on this page presents parcel level zoning.